| Business | Phone |
| Avalex Inc Civil Engineering 591 Tahoe Keys Blvd # D6, South Lake Tahoe 96150 | (530) 543-3200 |
| Haen Engineering 1950 Lake Tahoe Blvd # 9, South Lake Tahoe 96150 | (530) 541-4343 |
| C2me Engineering 2744 Santa Claus Dr, South Lake Tahoe 96150 | (530) 577-6447 |
| Blaise D'Angelo Pe 1300 Apache Ave, South Lake Tahoe 96150 | (530) 577-3300 |
| Earl G Hagadorn South Lake Tahoe 96150 | (530) 525-6564 |